package com.laosg.spring.small.core02.factory.support;

import com.laosg.spring.small.core02.BeanFactory;
import com.laosg.spring.small.core02.exception.BeansException;
import com.laosg.spring.small.core02.factory.config.BeanDefinition;

/**
 * <p>description: some thing </p>
 *
 * @author kevin
 * @date 8/17/21
 */
public abstract class AbstractBeanFactory extends DefaultSingletonBeanRegistry implements BeanFactory {
    @Override
    public Object getBean(String name) {
        return doGetBean(name,null);
    }

    @Override
    public Object getBean(String name, Object... args) {
        return doGetBean(name,args);
    }

    protected <T> T doGetBean(final String name, final Object[] args) {
        Object bean = getSingleton(name);
        if (bean != null) {
            return (T) bean;
        }
        BeanDefinition beanDefinition = getBeanDefinition(name);

        return (T) createBean(name,beanDefinition,args);
    }

    protected abstract BeanDefinition getBeanDefinition(String beanName) throws BeansException;

    protected abstract Object createBean(String beanName,BeanDefinition beanDefinition,Object[] args) throws BeansException;
}
